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EN 1.4404 Stainless Steel vs. ACI-ASTM CG3M Steel

Both EN 1.4404 stainless steel and ACI-ASTM CG3M steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4404 stainless steel and the bottom bar is ACI-ASTM CG3M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 43
28
Fatigue Strength, MPa 220 to 320
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
79
Tensile Strength: Ultimate (UTS), MPa 600 to 900
580
Tensile Strength: Yield (Proof), MPa 240 to 570
270

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 950
1020
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 19
20
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.8
4.1
Embodied Energy, MJ/kg 52
56
Embodied Water, L/kg 150
160

Common Calculations

PREN (Pitting Resistance) 26
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 210
130
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 800
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 32
20
Strength to Weight: Bending, points 20 to 26
20
Thermal Diffusivity, mm2/s 4.0
4.1
Thermal Shock Resistance, points 13 to 20
13

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 16.5 to 18.5
18 to 21
Iron (Fe), % 62.8 to 71.5
58.9 to 70
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 2.0 to 2.5
3.0 to 4.0
Nickel (Ni), % 10 to 13
9.0 to 13
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.040